Mercedes-Benz C-Class W203 Fuel Tank Filler Neck Pipe Hose A2034701420

Mercedes-Benz C-Class W203 Fuel Tank Filler Neck Pipe Hose is an original fuel system component designed for Mercedes C-Class and CLK models of the W203/C209 generation. Thanks to its factory geometry and precise fit, it ensures reliable fuel delivery from the filler to the tank, which translates into trouble-free operation and safe refueling. This is a practical solution for users looking for a proven, compatible component instead of aftermarket replacements with uncertain specifications.

Specifications and technical data

• SKU: A2034701420
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2034701420
• Substitutable numbers: A2034701420, A 203 470 14 20, EM
• Category: Clamps & Hardware

Purpose and function in the fuel system

The fuel filler neck and pipe in Mercedes C-Class and CLK vehicles are responsible for the tight and stable delivery of gasoline to the tank. A correctly selected component:

• maintains the proper fuel flow diameter during refueling,
• ensures correct routing of the line relative to the bodywork,
• minimizes the risk of leaks in the filler area,
• facilitates the installation of factory covers and mounts.

By maintaining the original design, the fuel filler neck and pipe for gasoline works with factory mounts and body components, which reduces the need for modifications during installation.

Construction and fit for Mercedes C and CLK

The element was designed specifically for the body architecture of the Mercedes C W203 and CLK C209, taking into account the characteristic routing of fuel lines in these models. This means that:

• mounting points are compatible with factory brackets and clamps,
• the shape of the pipe is adapted to the space between the wheel arch, body, and tank,
• the filler end works with the original fuel flap and cap housing.

Such a fit translates into stable installation and the absence of stresses that could cause cracks or leaks in the long term.

Characteristics of the used component

The offered fuel filler neck and pipe comes from dismantling, which allows for maintaining the original manufacturer's specification at a more attractive purchase cost. The used component:

• retains factory geometry and pipe routing,
• is a good base for repairs after collisions or corrosion in the filler area,
• works well as a replacement for a worn or damaged element in an operating vehicle.

For many users of Mercedes W203/C209 series, this is a reasonable compromise between quality and cost, especially during comprehensive service work within the fuel system.

Benefits of using an original fuel filler neck

Using an original fuel filler neck and pipe in a Mercedes C or CLK allows you to maintain the integrity of the entire fuel system. Key advantages include:

• factory fit to the body – no problems with length, diameter, or pipe routing angle,
• compatibility with original clamps and mounting parts,
• reduced risk of fuel leaks in the filler area,
• easier diagnostics and service thanks to the preservation of manufacturer solutions.

This is particularly important in vehicles where the fuel system operates under variable loads and access to components in the wheel arch and tank area is limited.

Related Mercedes mounting components

If you are planning a comprehensive repair or upgrade of the fuel system mounting area in your Mercedes and need other elements from the same group, such as clamps, brackets, or additional line mounts, check the available parts in the Mercedes clamps and mounting parts category.

Knowledge and service tips

If you are interested in how the use of used components can affect the character and performance of sports-compact segment cars, it is worth checking out the material on MINI modifications – you will find practical tips regarding the selection of second-hand parts there: MINI John Cooper Works – what makes it stand out and how to improve your MINI?.